Adult longevity, duration of development from hatching to adult emergence from the pupae, numbers of eggs laid, and prey consumed byChilomenes sexmaculataF. were evaluated at constant temperatures ranging from 26 to 34°C. Adult survival varied from 6.1% at 34°C to 65.7% at 30°C. Maximum oviposition rate was attained at 32°C, but fecundity was highest at 30°C. Low oviposition rate and fecundity at 26 and 34°C indicated that these temperatures were near the threshold of activity for the adult.